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Yin X, Han L, Mu S, Mu W, Liang S, Wang T, Liu Y, Zhang N. Preparation and evaluation of etoposide-loaded lipid-based nanosuspensions for high-dose treatment of lymphoma. Nanomedicine (Lond) 2019; 14:1403-1427. [PMID: 31180263 DOI: 10.2217/nnm-2018-0502] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Aim: High-dose administration of etoposide (VP16) was limited by its poor aqueous solubility and severe systemic toxicity on lymphoma therapy. Herein, a novel VP16-loaded lipid-based nanosuspensions (VP16-LNS) was developed for improving drug solubility, enhancing antitumor effect and reducing systemic toxicity. Materials & methods: VP16-LNS with soya lecithin and D-α-tocopheryl PEG 1000 succinate (TPGS) as stabilizers were prepared by nanoprecipitation method. Results: VP16-LNS exhibited uniform spherical morphology, small particle size and favorable colloidal stability. The concentration of VP16 in VP16-LNS was high enough (1017.67 μg/ml) for high-dose therapy on lymphoma. Moreover, VP16-LNS displayed long blood circulation time, selective intratumoral accumulation, remarkable antitumor effect and upregulated safety. Conclusion: VP16-LNS would be an efficient nanoformulation for clinical intravenous application against lymphoma.
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Affiliation(s)
- Xiaolan Yin
- Department of Pharmaceutics, Key Laboratory of Chemical Biology (Ministry of Education), School of Pharmaceutical Sciences, Shandong University, No. 44 West Culture Road, Ji’nan, Shandong Province 250012, PR China
| | - Leiqiang Han
- Department of Pharmaceutics, Key Laboratory of Chemical Biology (Ministry of Education), School of Pharmaceutical Sciences, Shandong University, No. 44 West Culture Road, Ji’nan, Shandong Province 250012, PR China
| | - Shengjun Mu
- Department of Pharmaceutics, Key Laboratory of Chemical Biology (Ministry of Education), School of Pharmaceutical Sciences, Shandong University, No. 44 West Culture Road, Ji’nan, Shandong Province 250012, PR China
| | - Weiwei Mu
- Department of Pharmaceutics, Key Laboratory of Chemical Biology (Ministry of Education), School of Pharmaceutical Sciences, Shandong University, No. 44 West Culture Road, Ji’nan, Shandong Province 250012, PR China
| | - Shuang Liang
- Department of Pharmaceutics, Key Laboratory of Chemical Biology (Ministry of Education), School of Pharmaceutical Sciences, Shandong University, No. 44 West Culture Road, Ji’nan, Shandong Province 250012, PR China
| | - Tianqi Wang
- Department of Pharmaceutics, Key Laboratory of Chemical Biology (Ministry of Education), School of Pharmaceutical Sciences, Shandong University, No. 44 West Culture Road, Ji’nan, Shandong Province 250012, PR China
| | - Yongjun Liu
- Department of Pharmaceutics, Key Laboratory of Chemical Biology (Ministry of Education), School of Pharmaceutical Sciences, Shandong University, No. 44 West Culture Road, Ji’nan, Shandong Province 250012, PR China
| | - Na Zhang
- Department of Pharmaceutics, Key Laboratory of Chemical Biology (Ministry of Education), School of Pharmaceutical Sciences, Shandong University, No. 44 West Culture Road, Ji’nan, Shandong Province 250012, PR China
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Duong HV, Truong QT, Tran TH, Nguyen TD, Viet Long N. Luminescent NaYF 4
:Yb,Er upconversion nanocrystal colloids: Towards controlled synthesis and near-infrared optical response. CAN J CHEM ENG 2017. [DOI: 10.1002/cjce.22851] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Affiliation(s)
- Hau V. Duong
- Department of Chemistry; Hue University of Agriculture and Forestry; Hue 84054 Vietnam
- Department of Chemistry; College of Sciences; Hue University; Hue 84054 Vietnam
| | - Quy-Tung Truong
- Department of Chemistry; College of Sciences; Hue University; Hue 84054 Vietnam
| | - Thai-Hoa Tran
- Department of Chemistry; College of Sciences; Hue University; Hue 84054 Vietnam
| | - Thanh-Dinh Nguyen
- Department of Chemistry; University of British Columbia; 2036 Main Mall, Vancouver BC V6T 1Z1 Canada
| | - Nguyen Viet Long
- Ceramics and Biomaterials Research Group; Ton Duc Thang University, Ho Chi Minh City; Vietnam
- Faculty of Applied Sciences; Ton Duc Thang University; Ho Chi Minh City Vietnam
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De Nicola M, Bruni E, Traversa E, Ghibelli L. Slow release of etoposide from dextran conjugation shifts etoposide activity from cytotoxicity to differentiation: A promising tool for dosage control in anticancer metronomic therapy. NANOMEDICINE-NANOTECHNOLOGY BIOLOGY AND MEDICINE 2017; 13:2005-2014. [PMID: 28535989 DOI: 10.1016/j.nano.2017.05.004] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/28/2016] [Revised: 03/30/2017] [Accepted: 05/08/2017] [Indexed: 11/27/2022]
Abstract
Drug conjugation, improving drug stability, solubility and body permanence, allows achieving impressive results in tumor control. Here, we show that conjugation may provide a straightforward method to administer drugs by the emerging anticancer metronomic approach, presently consisting of low, repeated doses of cytotoxic drugs used in traditional chemotherapy, thus reducing toxicity without reducing efficiency; however, low dose maintenance in tumor sites is difficult. We show that conjugating the antitumor drug etoposide to dextran via pH-sensitive bond produces slow releasing, apoptosis-proficient conjugates rapidly internalized into acidic lysosomes; importantly, release of active etoposide requires cell internalization and acidic pH. Conjugation, without impairing etoposide-induced complete elimination of tumor cells, shifted the mode of apoptosis from cytotoxicity- to differentiation-related; interestingly, high conjugate doses acted as low doses of free etoposide, thus mimicking the effect of metronomic therapy. This indicates slow release as a promising novel strategy for stabilizing low drug levels in metronomic regimens.
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Affiliation(s)
- Milena De Nicola
- Dipartimento di Biologia, Università di Roma Tor Vergata, Roma, Italy; Dipartimento di Scienze e Tecnologie Chimiche, Università di Roma Tor Vergata, Roma, Italy.
| | - Emanuele Bruni
- Dipartimento di Biologia, Università di Roma Tor Vergata, Roma, Italy.
| | - Enrico Traversa
- Dipartimento di Scienze e Tecnologie Chimiche, Università di Roma Tor Vergata, Roma, Italy; International Research Center for Renewable Energy (IRCRE), Xi'an Jiaotong University, Xi'an, Shaanxi, China.
| | - Lina Ghibelli
- Dipartimento di Biologia, Università di Roma Tor Vergata, Roma, Italy.
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